"Factory farms, also known as concentrated animal feeding operations (CAFOs), are a modern industrial method of raising farmed animals, who are collectively known in industry parlance as livestock. At its core, factory farming is a form of intensive agriculture designed to maximize profits using as few resources as possible. On factory farms, large numbers of animals are confined in small spaces, which often means keeping animals indoors for the duration of their lives.
Factory farming is an increasingly common way to raise animals for food, focusing on species such as cows, pigs, chickens, and fish. CAFOs can also be used to farm animals for non-food purposes, such as minks farmed intensively for their fur.
On factory farms, animals are not given any choice about how to live their lives. They're raised to grow quickly so that they can be turned into products as swiftly as possible."